GFS_PIO_TRUNCATE
GFS_PIO_TRUNCATE
Section: (3) Updated: 12 January 2005 Local index
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NAME
gfs_pio_truncate - truncate a file to a specified length
SYNOPSIS
#include <gfarm/gfarm.h>
char *gfs_pio_truncate (GFS_File gf, file_offset_t length);
DESCRIPTION
The gfs_pio_truncate() function truncates the
regular file gf to the length
bytes.
If the file was previously shorter than the length, it is extended,
and the extended part is filled by zero bytes.
The file pointer is not changed.
You must specify GFS_FILE_MODE_WRITE in opening
the file, because it must be open for writing.
RETURN VALUES
- NULL
-
The function terminated successfully.
- GFARM_ERR_NO_MEMORY
-
Insufficient memory was available.
- Others
-
An error except the above occurred. The reason is shown by its
pointed strings.
SEE ALSO
gfs_pio_create(3),
gfs_pio_open(3)
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUES
-
- SEE ALSO
-
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